秦皇岛近岸海域水环境质量评价  

Environmental quality assessment of Qinhuangdao coastal waters

作　　者：郗艳娟 肖国华 慕建东 杨超臣 闫丽 姚新悦 刘盼 何鸿雁 XI Yan-juan;XIAO Guo-hua;MU Jian-dong;YANG Chao-chen;YAN Li;YAO Xin-yue;LIU Pan;HE Hong-yan(Hebei Academy of Ocean and Fishery Sciences,Qinhuangdao 066200,China;Hebei Key Laboratory of Marine Biological Resources and Environment,Qinhuangdao 066200,China;Cangzhou Fisheries Technology Extension Station,Cangzhou 061000,China)

机构地区：[1]河北省海洋与水产科学研究院,河北秦皇岛066000 [2]河北省海洋生物资源与环境重点实验室,河北秦皇岛066000 [3]沧州市水产技术推广站,河北沧州061000

出　　处：《河北渔业》2022年第11期21-29,共9页

摘　　要：根据2018年春季和夏季对秦皇岛近岸海域水质调查结果,依据海水水质标准、采用有机污染评价指数和营养指数评价方法,对调查水域的水质质量状况进行评价。结果表明:春季和夏季DIN和DIP浓度的变化范围分别为0.006~1.094 mg/L和0.001~0.018 mg/L,均值分别为0.140 mg/L和0.004 mg/L;COD的变化范围为0.68~2.50 mg/L,平均值为1.25 mg/L。在春夏两个航次的调查中,所有调查因子的均值均符合I类海水水质标准。有机污染指数的范围为-0.67~5.33,均值为0.52,表明有机污染程度处于良好状态;富营养化指数的范围为0.00~3.75,均值为0.18,调查水域基本处于贫营养状态。The spatial and temporal variations of nutrients in the coastal waters of Qin Huangdao were studied based on two seasonal cruises during 2018.Pollution status was evaluated according to Seawater quality standard.The organic pollution appraisal index(A)and the eutrophication index method(E)were used to evaluate the eutrophication of the seawater.Results showed that the variation ranges of DIN and DIP concentrations in spring and summer were 0.006~1.094 mg/L and 0.001~0.018 mg/L respectively,with the average of 0.140 mg/L and 0.004 mg/L respectively.The variation range of COD was 0.68~2.50 mg/L,and the average value was 1.25 mg/L.In the investigation of spring and summer voyages,the mean values of all investigation factors met the first standard request of the seawater quality criterion.The range of organic pollution index was-0.67~5.33,the average value was 0.52,which indicated that the organic pollution status of the surface seawater in the area was good.The range of eutrophication index was 0.00~3.75,with an average of 0.18.The investigated waters was basically in oligotrophic state.

关 键 词：秦皇岛 近岸海域 环境评价 有机污染 富营养化 

分 类 号：X824[环境科学与工程—环境工程] X55